Y-2494-3 Hopper Framing.pdf

This is an architectural and engineering drawing set for the Dredge Yaquina, a hopper dredge vessel. The document consists of detailed technical blueprints and specifications prepared by the U.S. Army Engineer District, Portland, Oregon, for the Corps of Engineers. The drawings are titled "Hopper Plating & Framing FR 32-53" and include structural details, cross-sections, and construction specifications for the vessel's framing and plating systems.

The drawings contain multiple detailed sections and views depicting the hopper structure, including expanded details of various framing configurations, tank tops, structural connections, and welding requirements. General notes specify that all welding must comply with the latest AWS and GGDT Guard rules and regulations, all materials must be Grade "A" steel or ASTM A36 unless otherwise noted, and standard structural details are referenced elsewhere in the specification set. Additional notations indicate specific detail references (such as Detail 7-E, 4-E, 4-C, and various other numbered details) that provide expanded views of construction joints, beam connections, and tank configurations. The document includes references to various specifications and technical requirements necessary for proper fabrication and construction of the dredge vessel's structural components.